set up a system to solve. Two angles are supplementary. Twice one angle is equal to the other anlge minus 36. Find both angles.

2 answers

The answer is x=48 and y=132 but how did they get this answer?
two angles are supplementary if they add to 180. So, if one angle is x, the other is (180-x), and you have

2x = (180-x)-36
2x = 133-x
3x = 144
x = 48